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MultiVOIP User Guide Embedded Gatekeeper
509
Network Parameter Definitions (cont’d)
Field Name Values Description
Configuration
Parameters
Call IRQ
Interval
The interval, in seconds, between IRQ
messages sent by the Gatekeeper to query
the status of calls. IRQ messages are sent
to all online endpoints registered as
dynamic and having ongoing calls in
order to verify that the calls are still
ongoing. The number you set determines
the delay between two IRQ messages to
the same endpoint regarding the same
call. Choosing the desired delay should
take into account the following factors:
IRQ messages add to the traffic already
present over the network, and the shorter
the delay, the more IRQ messages are
sent. However, the longer the delay, the
longer it takes for the Gatekeeper to
detect calls that are stale.
The delay parameter relates to the
interval between two IRQ messages per
one call, so the actual number of the IRQ
messages the Gatekeeper creates during
this interval should be multiplied by the
number of ongoing calls registered
dynamically.
To disable the IRQ polling, set this value
to zero.
The effective IRQ interval cannot fall
below three times the RAS timeout.
IRQ messages will not be sent at a rate
exceeding 20 per second.